The Hamilton Buhl Sack-O-Phones HA1A Personal Headsets with Foam Ear Cushions and Wire Headband come in a carry bag that doubles as a knap sack and holds up to 10 personal headsets. It's a good way to easily store headsets.
The headsets feature automatic stereo / mono detection technology that allows them to be used with virtually all school audio equipment. Never worry about mismatching headsets between different sources and damaging ears or equipment. There are no switches to set or special plug adapters to be changed; the headset knows if it is plugged into a stereo or mono system and automatically adjusts. These headsets operate in 1/8" stereo, 1/8" mono, 1/4" stereo, or 1/4" mono modes.
Built with kid's health and safety in mind, these headsets are designed to combat the spread of head lice in schools. Each headset comes in its own heavy-duty, write-on, moisture-resistant, re-closable bag. When sealed in the bag, lice are killed in 24 to 48 hours without the use of chemicals.